Abe, Hitachi
Atsushi Abe, Hitachi JP
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20090177331 | Energy-Saving Service Offering Method And Apparatus Therefor - An energy saving support service offering method includes introducing an inverter at least in a load facility having a motor with an expense of an energy saving support service provider and/or its cooperatives, and performing an electric power saving operation by an inverter control operation. | 07-09-2009 |
Daisuke Abe, Hitachi JP
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20120213246 | Method for Evaluating Life of Cable Insulating Coating Material - Disclosed is a method for estimating, within a short time, the life of a cable insulating coating material containing an antioxidant in a suitable concentration based on the rate of decrease of the antioxidant and on the critical concentration of the antioxidant at which oxidative degradation rapidly proceeds. The method tests the coating material to examine its life, the coating material including a base polymer, and an antioxidant having a functional group suppressing an oxidative deteriorative reaction of the base polymer. The method includes performing a thermal degradation test on the coating material; determining the degradation levels and degradation rates of the coating material at two or more time points in the thermal degradation test, based on the ratio of the absorbance of the functional group of the antioxidant to the absorbance of the base polymer; and thereby evaluating the life of the coating material. | 08-23-2012 |
Hidenori Abe, Hitachi JP
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20090286083 | Copper wire for a magnet wire, magnet wire using same, and method for fabricating copper wire for a magnet wire - A copper wire for a magnet wire, a magnet wire using same, and a method for fabricating the copper wire for the magnet wire. The copper wire for the magnet wire is made from a casting material. The casting material is fabricated by continuous upward drawing from a molten copper or a molten copper alloy. An average crystal grain diameter of a columnar crystal structure formed at a surface layer of the casting material is 200 to 300 μm. An upward drawing rate is 4 m/min to 5 m/min and a temperature of the molten copper or the molten copper is 1100 to 1200° C. | 11-19-2009 |
20100263905 | DILUTE COPPER ALLOY MATERIAL, DILUTE COPPER ALLOY WIRE, DILUTE COPPER ALLOY TWISTED WIRE AND CABLE USING THE SAME, COAXIAL CABLE AND COMPOSITE CABLE, AND METHOD OF MANUFACTURING DILUTE COPPER ALLOY MATERIAL AND DILUTE COPPER ALLOY WIRE - A dilute copper alloy material includes, based on a total mass of the dilute copper alloy material, 2 to 12 mass ppm of sulfur, 2 to 30 mass ppm of oxygen, 4 to 55 mass ppm of titanium, and a balance consisting of pure copper and an inevitable impurity. A part of the sulfur and the titanium forms a compound or an aggregate of TiO, TiO | 10-21-2010 |
20120100390 | Weldment and method of manufacturing the same - A weldment includes metal materials that are welded to each other. At least one of the metal materials includes pure copper including an inevitable impurity, more than 2 mass ppm of oxygen, and an additive element selected from the group consisting of Mg, Zr, Nb, Fe, Si, Al, Ca, V, Ni, Mn, Ti and Cr. A method of manufacturing a weldment includes melting a dilute copper alloy material by SCR continuous casting and rolling at a molten copper temperature of not less than 1100° C. and not more than 1320° C. to make a molten metal, forming a cast bar from the molten metal, forming a dilute copper alloy member by hot-rolling the cast bar, and welding the dilute copper alloy member to a metal material. The dilute copper alloy material includes the pure copper, more than 2 mass ppm of oxygen, and the additive element, | 04-26-2012 |
Junichi Abe, Hitachi JP
Patent application number | Description | Published |
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20110240332 | INSULATED WIRE - There is provided an insulated wire including a wire conductor and an insulation coating formed on the wire conductor by extrusion coating a resin composition. The resin composition is a mixture of a polyphenylene sulfide-based resin (A) and a polyamide-based resin (B), in which a ratio of parts by mass of the resin (B) to that of the resin (A), i.e. (B)/(A), is not less than 5/95 and not more than 30/70. | 10-06-2011 |
20130255992 | INSULATED WIRE - An insulated wire includes a conductor and an insulation covering formed thereon. The insulation covering includes a first insulation covering layer formed directly on the conductor and a second insulation covering layer formed on a periphery of the first insulation covering layer. The first insulation covering layer includes a resin composition including a resin (A) including polyphenylene sulfide and a resin (B) including polyamide mixed at a mass ratio in a range of “30/70≦B/A≦90/10”. The second insulation covering layer includes a resin composition mainly including a resin (C) including polyphenylene sulfide or polyetheretherketone. | 10-03-2013 |
Kazuki Abe, Hitachi JP
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20110076628 | COMBUSTOR - This invention is directed to supply a combustor having a structure that reduces NOx emissions while maintaining combustion stability. The combustor has a chamber into which fuel and air are supplied. An air hole plate having a plurality of air holes upstream of the chamber is also disclosed, and fuel nozzles supplying fuel to the air holes of the air hole plate are further disclosed. In the combustor, a center of a chamber-side of the air hole plate is closer to the chamber than exits of outermost peripheral air holes. | 03-31-2011 |
Masami Abe, Hitachi JP
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20080302333 | Electromagnetic Drive Mechanism and a High-Pressure Fuel Supply Pump - The objective of the present invention is to dampen operating sounds of an electromagnetic drive mechanism used for a variable displacement to reduce an individual difference depending on apparatus due to the control mechanism in a high-pressure fuel supply pump change over time or installation tolerance. | 12-11-2008 |
20090120412 | Plunger Type High-Pressure Fuel Pump - A plunger type high-pressure fuel pump includes a plunger reciprocated in a cylinder. A fluid pressurizing chamber of the pump has a chamber with a capacity that changes with reciprocation of the plunger. An electromagnetic valve is provided between the pressurizing chamber and a fluid suction passage; as well as a discharge valve. The electromagnetic valve includes a valve member including a suction valve; a solenoid coil adapted to displace the valve member; an anchor made of a magnetic material provided integrally with the valve member; and a core forming a magnetic circuit to attract the anchor by the electromagnetic force and dividing the inside of the electromagnetic valve into a hermetically closed space and an external space communicating with the fluid suction passage. The anchor or the core is provided with a fluid passage through which fluid can flow between the hermetically closed space and the external space formed by the anchor and the core, respectively when the suction valve is in an opened state. | 05-14-2009 |
20130280112 | High-Pressure Fuel Pump - A high-pressure fuel pump includes a pressurizing chamber for pressurizing fuel, an outlet valve for discharging the fuel pressurized in the pressurizing chamber to an outlet passage, a relief passage for connecting the outlet passage located downstream of the outlet valve and the pressurizing chamber with each other while bypassing the outlet valve. A relief valve device is provided in the relief passage and adapted to open when an internal pressure of the outlet passage becomes higher than that of the pressurizing chamber, thereby providing communication between the outlet passage and the pressurizing chamber. The relief valve includes a relief spring mechanism for pressing a relief valve to a relief valve seat. At least the relief spring mechanism among members of the relief valve device is provided outside the pressurizing chamber in the pump body. | 10-24-2013 |
20130302192 | Plunger Type High-Pressure Fuel Pump - A plunger type high-pressure fuel pump includes a plunger reciprocated in a cylinder. A fluid pressurizing chamber of the pump has a chamber with a capacity that changes with reciprocation of the plunger. An electromagnetic valve is provided between the pressurizing chamber and a fluid suction passage; as well as a discharge valve. The electromagnetic valve includes a valve member including a suction valve; a solenoid coil adapted to displace the valve member; an anchor made of a magnetic material provided integrally with the valve member; and a core forming a magnetic circuit to attract the anchor by the electromagnetic force and dividing the inside of the electromagnetic valve into an internal space and an external space communicating with the fluid suction passage. The anchor or the core is provided with a fluid passage through which fluid can flow between the internal space and the external space formed by the anchor and the core, respectively, when the suction valve is in an opened state. | 11-14-2013 |
Teruyoshi Abe, Hitachi JP
Patent application number | Description | Published |
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20080224574 | STEPPING MOTOR AND STEEL PLATE FOR MANUFACTURING THE STEPPING MOTOR - A stepping motor comprising: | 09-18-2008 |
20080238237 | INDUCTION MACHINE - An induction machine has a stator and rotor. The stator comprises teeth and slots and stator winding disposed in the slots. The rotor comprises a rotor core having teeth and slots and a rotor-conductor disposed in the rotor slots. Both of the stator core and rotor core are made of laminated steel sheets, and the teeth and slots made of steel sheets are formed by etching. | 10-02-2008 |
20080238241 | COMMUTATOR MOTOR AND ELECTRIC VACUUM CLEANER USING THE SAME - An efficient and high-performance commutator motor in which both torque enhancement and iron loss reduction are achieved is provided by ensuring a sufficient area occupied by field windings wound on main poles and further suppressing the influence of armature counteractive magnetic flux and reducing pulsating torque. The commutator motor includes a stator and an armature. The stator includes a stator iron core having the main poles and slots and the field windings disposed in the slots. The armature includes an armature iron core having slots and teeth and armature windings wound in the slots. The stator and armature iron cores are formed of laminated steel sheets. The iron cores are formed by etching process. Multiple through holes are formed in the main poles opposed to the air gap positioned on the forward side in the direction of armature rotation by etching process. | 10-02-2008 |
20090033180 | Rotating Electrical Machine - A rotating electrical machine having an RF-IC chip for detecting a rotation and also having a stator and a rotor. When a compact RF-IC chip is used as the RF-IC chip, the chip can detect the rotation of the rotating electrical machine. | 02-05-2009 |
Yoshiharu Abe, Hitachi JP
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20090102473 | EDDY CURRENT TESTING METHOD AND EDDY CURRENT TESTING APPARATUS - The present invention provides an eddy current testing method and an eddy current testing apparatus that can reduce detection noise to increase the SN ratio thus improving the defect detection accuracy. | 04-23-2009 |